Melted Leek & Brie Rough-Puff Coussins
We are not suffering for brunch. That has been my rule since my early days in Paris kitchens, and it holds true today in my Bay Area studio. When I want bakery-counter luxury without spending my entire Sunday rolling butter blocks, I turn to these Melted Leek & Brie Rough-Puff Coussins. The inspiration struck late one Tuesday when I stared down a tired wheel of Brie and a lone leek in the crisper drawer. Instead of tossing them, I leaned into my lamination-lite rough-puff method. Butter is not a garnish, so we fold cold fat into flour with a heavy hand, letting time and the fridge do the work. Inside those shatter-crisp layers goes a filling of silky, white wine-braised leeks and melting cheese. Why it works: the leeks soften into sweet ribbons that cut through the rich, buttery paste of the Brie. Finish them with a heavy snow of flaky sea salt and cracked black pepper. Cami’s shortcut note: buy all-butter puff pastry if you are completely swamped, but try my quick folds just once. Don’t skip the chill time—cold butter creates steam, and steam is what gives you that lacy, gorgeous crumb.
Featured Recipe
Melted Leek & Brie Rough-Puff Coussins
Buttery, flaky rough-puff pillows stuffed with silky white wine-braised leeks and molten wheels of ripe Brie. Finished with flaky sea salt and cracked black pepper, these bakery-counter snacks deliver maximum shatter with weeknight-friendly folds.
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Timeline
Ingredients
- 240 g all-purpose flour(unbleached, plus extra for dusting)
- 0.75 tsp fine sea salt(divided)
- 170 g cold unsalted cultured butter(diced into 1/2-inch cubes and kept ice-cold; 82% fat preferred)
- 90 ml ice water(plus 1-2 tsp if dough feels dry)
- 1 tbsp olive oil
- 2 medium leeks(white and pale green parts only, washed thoroughly and thinly sliced into half-moons)
- 1 tbsp fresh thyme leaves(finely chopped)
- 2 tbsp dry white wine(such as Sauvignon Blanc)
- 1 tbsp Dijon mustard(smooth traditional French style)
- 180 g Brie cheese(chilled firm, rind intact, sliced into 8 equal batons)
- 1 large egg(beaten with 1 tsp cold water for egg wash)
- 0.5 tsp flaky sea salt(such as Maldon)
- 0.5 tsp freshly cracked black pepper
- 1 tbsp olive oil(mentioned in step 4 but missing from ingredient list)
- 1 tbsp fresh thyme leaves(mentioned in step 4 but missing from ingredient list)
- 2 tbsp dry white wine(mentioned in step 4 but missing from ingredient list)
- 1 tbsp Dijon mustard(mentioned in step 4 but missing from ingredient list)
- 180 g Brie cheese(mentioned in step 6 but missing from ingredient list)
- 1 large egg(mentioned in steps 6 and 8 but missing from ingredient list)
- 0.5 tsp flaky sea salt(mentioned in step 8 but missing from ingredient list)
- 0.5 tsp freshly cracked black pepper(mentioned in step 8 but missing from ingredient list)
Instructions
- 1
In a wide mixing bowl, whisk together 240 g all-purpose flour and 0.5 tsp fine sea salt. Dump in 170 g cold unsalted cultured butter. Using your fingertips or a bench scraper, press the cubes into flat walnut-sized flakes—do not rub them down into fine sand. Pour in 90 ml ice water and use a fork to gather the mixture into a shaggy, uneven mass with visible butter streaks.
10 min
Tip: Visible butter sheets equal steam pockets in the oven; if the butter softens at any point, slide the bowl into the freezer for 5 minutes.
- 2
Tip the shaggy dough onto a lightly floured counter and pat into a rough 6x10-inch rectangle. Fold the bottom third up and top third down like a standard business letter (turn 1). Rotate 90 degrees, roll out again to an 8x12-inch rectangle, and repeat the letter fold (turn 2). Roll and fold one more time for a third turn, pat into a compact 1-inch-thick brick, wrap tightly in plastic, and transfer to the refrigerator.
10 min
Tip: Three quick folds give you dozens of flaky strata without the fuss of a classic butter block.
- 3
Let the laminated rough-puff rest in the refrigerator to allow the gluten to relax and the butter to re-harden completely.
30 min
Tip: The fridge is your best friend here. Trying to roll warm pastry leads to butter leaking out during bake.
- 4
While the dough rests, set a skillet over medium heat and warm 1 tbsp olive oil. Add 2 medium leeks, 1 tbsp fresh thyme leaves, and remaining 0.25 tsp fine sea salt. Cook gently until leeks are soft and sweet, about 8 minutes. Deglaze with 2 tbsp dry white wine, scraping any browned bits, and simmer until completely dry, 2 minutes. Stir in 1 tbsp Dijon mustard, remove from heat, and spread the mixture onto a plate to cool to room temperature.
15 min
Tip: Never load hot fillings onto laminated pastry or the butter will melt on contact, wrecking your lamination.
- 5
Unwrap the chilled dough onto a lightly floured surface. Roll it out into an even 12x16-inch rectangle, roughly 1/8-inch thick. Trim ragged edges with a sharp pizza wheel or knife, then cut into 8 equal rectangles (each about 4x6 inches).
10 min
Tip: Cut with straight downward strokes rather than dragging your blade to keep the laminated edge cut clean.
- 6
Line a large heavy baking sheet with parchment paper. Spoon one-eighth of the cooled leek filling along one half of each rectangle, leaving a 1/2-inch border. Top each mound with a baton of 180 g Brie cheese. Brush borders lightly with a bit of 1 large egg wash. Fold the empty pastry half over the cheese to form a neat pillow (coussin), and firmly press the edges to seal. Use the tines of a fork to crimp the three open edges shut.
10 min
Tip: Keep the cheese cold until this exact moment so it doesn't run everywhere before the pastry sets.
- 7
Transfer the sealed coussins onto the prepared baking sheet. Using a paring knife, cut two small diagonal vents into the top of each pillow to allow steam to escape. Place the baking sheet into the freezer for 15 minutes while preheating the oven to 425°F (220°C).
15 min
Tip: A quick blast of cold right before hitting hot heat shocks the butter into rapid puffing.
- 8
Brush the chilled pastries evenly with the remaining 1 large egg wash, taking care not to drip onto the cut layered edges. Scatter over 0.5 tsp flaky sea salt and 0.5 tsp freshly cracked black pepper. Bake at 425°F (220°C) for 22 to 25 minutes until deeply bronzed, audibly crisp, and the Brie shows just a hint of bubbling escape at the vents.
25 min
Tip: Drips on the side will glue the layers shut; keep the wash strictly on the top surface.
- 9
Transfer the coussins to a wire cooling rack and let rest for 5 minutes. Serve warm while the crust is violently crisp and the Brie is creamy and soft.
5 min
Tip: Give them 5 minutes so the cheese sets enough not to scald your tongue.
Chef's Notes
Butter is not a garnish, and lamination isn't a dark art. This rough puff gives you 90% of a bakery feuilletage in a fraction of the time. Don't skip the final freezer chill before baking: shocking cold butter in a screaming hot oven is what gives you that lacy, ultra-crisp rise. If your Brie oozes slightly on the sheet, congratulations—those caramelized cheese edges are the baker's reward.
Camille Roux
Café-level bakes, weeknight methods, zero compromise.
Camille “Cami” Roux was born in Paris with flour in her hair and a healthy skepticism of culinary dogma. She grew up around neighborhood boulangeries that treated crust and crumb like religion—but what stuck with her wasn’t rigid tradition. It was the quiet precision: good butter that actually tastes like milk, patient fermentation that builds flavor for free, and desserts that know when to stop before they get cloying. After moving to the Bay Area, Cami trained in a bread-and-pastry scene obsessed with texture, naturally leavened doughs, and seasonal fruit—Tartine energy, minus the martyrdom. She became known for loaves that sing when they cool, jammy tarts with clean edges, and “how is this so good?” weeknight pastries made with a few smart shortcuts. Her motto is high impact, low fuss: splurge where it counts (butter, salt, time), streamline the rest (sheet pans, one bowl, cold-proofing). If it doesn’t improve flavor or structure, it doesn’t earn a step.